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TransMatch: A Transfer-Learning Scheme for Semi-Supervised Few-Shot Learning

CVPR 2020 · Label-efficient and robust learning › Semi-supervised learning · approach: GAN-based semi-supervised learning · 135 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
use TransMatch with 100 unlabeled images per class instead of Activation NetminiImageNet 5-way 1-shot classification · miniImageNetaccuracy (%): 59.60$\pm$0.41 -> 63.02$\pm$1.07Helped
use TransMatch with 200 unlabeled images per class instead of TADAMminiImageNet 5-way 5-shot classification · miniImageNetaccuracy (%): 76.70$\pm$0.30 -> 82.24$\pm$0.59Helped
add MixMatch rather than use Pseudo-Label (ablation)TransMatch framework · miniImageNet 5-way classification, 100 unlabeled imagesaccuracy (%): 57.01 $\pm$ 1.13 -> 63.02 $\pm$ 1.07; +6.01Helped
add MixMatch rather than use Pseudo-Label (ablation)TransMatch framework · miniImageNet 5-way 2-shot classification, 100 unlabeled imagesaccuracy (%): 70.07 $\pm$ 0.96 -> 72.36 $\pm$ 0.88; +2.29Helped
add MixMatch rather than use Pseudo-Label (ablation)TransMatch framework · miniImageNet 5-way 5-shot classification, 100 unlabeled imagesaccuracy (%): 80.00 $\pm$ 0.66 -> 81.19 $\pm$ 0.59; +1.19Helped
add weight imprinting to MixMatch (ablation)TransMatch on miniImageNet · miniImageNet 5-way 1-shot classification, 100 unlabeled imagesaccuracy (%): +11.02Helped
add MixMatch to Imprinting (ablation)TransMatch on miniImageNet · miniImageNet 5-way 1-shot classificationaccuracy (%): 58.68 $\pm$ 0.81 -> 63.02$\pm$1.07Helped
fine-tune the imprinted classifier without unlabeled examples (ablation)miniImageNet 5-way 1-shot classification · miniImageNetaccuracy (%): 58.68$\pm$0.81 -> 55.60$\pm$0.77Hurt
increase unlabeled data from 20 to 100 images (ablation)TransMatch · miniImageNet 5-way 1-shot classificationaccuracy (%): 58.43$\pm$0.93 -> 63.02$\pm$1.07Helped
increase unlabeled data from 100 to 200 images (ablation)TransMatch · miniImageNet 5-way 1-shot classificationaccuracy (%): 63.02$\pm$1.07 -> 62.93$\pm$1.11No clear effect
include distractor-class unlabeled data rather than unlabeled data from novel classes (ablation)MixMatch · miniImageNet 5-way 1-shot classification, 1–3 distractor classesaccuracy (%): 50.14 $\pm$ 1.06; 50.68 $\pm$ 1.15; 49.48 $\pm$ 1.16Hurt
increase unlabeled data from 5 to 20 images (ablation)TransMatch · CUB-200-2011 100-way 5-shot classificationaccuracy (%): 52.90 -> 59.25Helped

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